JP2023104384A - Abnormal noise suppression seat, seat back, and vehicle seat - Google Patents

Abstract

To obtain an abnormal noise suppression seat which can suppress displacement of an abnormal noise suppression seat body to suppress abnormal noise occurring between a seat back frame and a seat back pad, and to obtain a seat back and a vehicle seat.SOLUTION: An abnormal noise suppression seat 20 is provided between a seat back frame 16 and a seat back pad 18 and suppresses abnormal noise occurring between the seat back frame and the seat back pad 18. A hole 54 is formed at the abnormal noise suppression seat 20 and the hole 54 is configured to be engaged with a lower end 44A of a center wire 44 provided at the seat back frame 16. Thus, in a state that the abnormal noise suppression seat 20 covers the seat back frame 16, the hole 54 formed at the abnormal noise suppression seat 20 is engaged with the lower end 44A of the center wire 44 provided at the seat back frame 16. Thus, displacement of the abnormal noise suppression seat 20 relative to the seat back frame 16 can be suppressed.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to a noise suppressing seat, a seat back, and a vehicle seat.

For example, Patent Literature 1 discloses a technique in which an abnormal noise prevention member is provided between a seat back frame and a seat back pad in a vehicle seat (vehicle seat). In this prior art, since the noise prevention member is interposed between the seat back frame and the seat back pad, the seat back frame and various mechanical parts fixed to the seat back frame directly rub against the seat back pad. This is to prevent noise from occurring.

Japanese Patent No. 6879096

However, in the above prior art, the noise prevention member (noise suppression sheet) is designed to cover the seat back frame, and when the seat back pad is assembled to the seat back frame and the noise prevention member, If the abnormal noise prevention member is displaced from the predetermined position with respect to the seat back frame, there is a possibility that an abnormal noise will be generated.

In consideration of the above facts, the present invention provides a noise suppressing sheet and a seat capable of suppressing displacement of the noise suppressing seat body and suppressing noise generated between the seat back frame and the seat back pad. The object is to obtain a back and a vehicle seat.

A noise suppressing seat according to claim 1 is a noise suppressing seat that covers a seat back frame that is a skeleton member of a seat back that supports the upper body of an occupant seated on a seat cushion. A locked portion to be locked by the provided locking portion is formed, and the locked portion is locked to the locking portion in a state in which the noise suppressing seat main body covers the seat back frame, and the It is provided between the seat back frame and a seat back pad attached to the outside of the seat back frame.

A noise suppression sheet according to claim 1 is a member that covers a seatback frame that is a skeleton member of a seatback. It is designed to be locked to the locking portion.

Then, in a state where the noise suppression sheet (noise suppression sheet main body) covers the seat back frame, the latched portion formed on the noise suppression sheet is latched to the latching portion provided on the seat back frame. . A seat back pad is attached to the outside of the seat back frame, and the noise suppression sheet is provided between the seat back frame and the seat back pad.

By providing the noise suppressing sheet between the seat back frame and the seat back pad in this manner, the seat back frame and the seat back pad can be prevented from coming into direct contact with each other. As a result, in the present invention, it is possible to suppress the generation of abnormal noise caused by direct contact between the seat back frame and the mechanical parts or the like arranged in the seat back frame and the seat back pad.

In the present invention, in a state in which the noise suppression sheet covers the seat back frame, the engaged portion formed on the noise suppression sheet is engaged with the engagement portion provided on the seat back frame. , it is possible to suppress the displacement of the noise suppressing sheet with respect to the seat back frame.

A noise suppressing seat according to claim 2 is the noise suppressing seat according to claim 1, wherein a rod-shaped body as the locking portion provided on the seat back frame can be inserted through the locked portion. It is a hole.

In the noise suppressing seat according to claim 2, the locked portion is a hole through which the rod-shaped body as the locking portion provided on the seat back frame can be inserted. Thus, in the present invention, when the seat back frame is covered with the noise suppression sheet, the rod-shaped body and the hole are inserted into the hole formed in the noise suppression sheet. , it is possible to suppress the displacement of the noise suppressing sheet with respect to the seat back frame.

The noise suppression sheet according to claim 3 is the noise suppression sheet according to claim 2, wherein the hole is provided at the lower end of the noise suppression sheet body and at the center in the width direction. It is formed at a portion corresponding to the rod-shaped body provided at the lower end of the seat back frame and the central portion in the seat width direction when the sound suppressing seat main body covers the seat back frame.

In the noise suppression sheet according to claim 3, the hole is provided at the lower end of the noise suppression sheet and at the center in the width direction. A rod-shaped body is formed at the lower end of the seat back frame and at the center in the seat width direction. It is formed in a portion corresponding to a rod-shaped body provided in the central portion of the.

The noise suppression sheet is put on the seatback frame from above. Therefore, in the present invention, the lower end of the noise suppression sheet is engaged with the lower end of the seat back frame, so that the noise suppression sheet covers the entire seat back frame. It is possible to suppress the displacement of the noise suppressing sheet from the upper end portion to the lower end portion of the.

In addition, in the present invention, since the positional deviation of the noise suppression sheet is suppressed at one point in the lower end of the noise suppression sheet body and the central part in the width direction, the work man-hours involved in suppressing the positional deviation of the noise suppression sheet are reduced. Increase can be minimized.

The noise suppression sheet according to claim 4 is the noise suppression sheet according to any one of claims 1 to 3, wherein the noise suppression sheet main body covers the seat back frame. At a portion corresponding to the upper end of the seat back frame, there is a relief hole for exposing a headrest holder which is provided at the upper end of the seat back frame and holds the legs of the headrest supporting the upper body of the occupant seated on the seat cushion. formed.

In the noise suppression sheet according to claim 4, an escape hole is formed in a portion corresponding to the upper end of the seat back frame in a state where the noise suppression sheet covers the seat back frame, and the headrest holder is attached through the escape hole. It is exposed. That is, in the present invention, the legs of the headrest can be directly inserted into the headrest holder through the escape holes in a state where the noise suppression sheet covers the seatback frame.

As a comparative example, it is conceivable to form cuts or the like in advance at positions where the legs of the headrest are inserted, but in this case, the amount of cuts may increase when inserting the legs of the headrest. In contrast, in the present invention, since the headrest holder is exposed through the relief hole, such a problem does not occur.

The noise suppression sheet according to claim 5 is the noise suppression sheet according to any one of claims 1 to 4, wherein the noise suppression sheet main body covers the seat back frame. Working holes that are accessible to the seat back frame are formed in portions corresponding to the front side and the back side of the seat back frame.

In the noise suppression sheet according to claim 5, working holes are formed in portions corresponding to the front side and the back side of the seat back frame in a state where the noise suppression sheet covers the seat back frame. The seat back frame is accessible. In other words, in the present invention, wiring work of the harness can be performed through the work hole in a state where the noise suppressing sheet covers the seat back frame.

According to a sixth aspect of the invention, in the noise suppression sheet of the fifth aspect, the work hole on the front side and the work hole on the back side are formed to penetrate.

In the noise suppressing sheet according to claim 6, the operation hole on the front side and the operation hole on the back side are formed so as to pass through the operation hole on the front side and the operation hole on the back side in forming the noise suppression sheet. Since there is no need to divide the formation of the , the number of working steps can be reduced.

Further, in the present invention, since the front and rear surfaces of the noise suppression sheet can be eliminated, it is not necessary to check the front and back of the noise suppression sheet when covering the seat back frame with the noise suppression sheet. It is possible to reduce the number of man-hours for the work.

The noise suppression sheet according to claim 7 is the noise suppression sheet according to any one of claims 1 to 6, wherein the noise suppression sheet main body covers the seat back frame, A through-hole is formed in a portion corresponding to a side airbag which is provided in the side portion of the seatback frame and which can be inflated and deployed in the event of a vehicle collision.

In the noise suppression sheet according to claim 7, the through hole is formed in a portion corresponding to the side airbag provided on the side portion of the seat back frame in a state where the noise suppression sheet covers the seat back frame. be. Thus, in the present invention, when the side airbag is inflated and deployed at the time of a vehicle collision, the inflation and deployment of the side airbag are not hindered.

The seat back according to claim 8 comprises the seat back frame according to any one of claims 1 to 7, a seat back pad attached to the outside of the seat back frame, and a seat back frame. The noise suppressing sheet according to any one of claims 1 to 7 is provided between the seat back frame and the seat back pad.

In the seatback according to claim 8, a seatback pad is attached to the outside of the seatback frame covered with the noise suppression sheet. That is, the noise suppressing sheet is provided between the seat back frame and the seat back pad.

As a result, in the present invention, the seatback frame and the seatback pad can be prevented from coming into direct contact with each other, and the seatback frame and the mechanical parts or the like arranged in the seatback frame come into direct contact with the seatback pad. It is possible to suppress the generation of abnormal noise caused by doing so.

A vehicle seat according to claim 9 includes a seat cushion on which an occupant sits, and a seat cushion for supporting the upper body of the occupant seated on the seat cushion. and a headrest that supports the upper body of an occupant seated on the seat cushion.

The vehicle seat according to claim 9 includes a seat cushion, a seat back, and a headrest, and it is possible to enjoy the effects obtained by the seat back of the present invention.

INDUSTRIAL APPLICABILITY As described above, the noise suppressing seat, the seat back, and the vehicle seat according to the present invention suppress the displacement of the noise suppressing seat main body, and suppress the noise generated between the seat back frame and the seat back pad. It has an excellent effect of being able to suppress

FIG. 4 is a rear view showing a seat back frame covered with the noise suppressing sheet according to the present embodiment; 1 is a perspective view showing an abnormal noise suppression sheet according to this embodiment; FIG. FIG. 4 is a rear view showing a state before the noise suppressing sheet according to the present embodiment is put on the seat back frame; FIG. 4 is a rear view showing a state in which the upper portion of the seatback frame is covered with the noise suppression sheet according to the present embodiment; FIG. 4 is a rear view showing a state in which the seat back frame is covered with the noise suppression sheet according to the present embodiment; FIG. 4 is a rear view showing a state in which the noise suppressing sheet according to the present embodiment is engaged with the seat back frame;

A vehicle seat using a noise suppression sheet according to an embodiment of the present invention will be described below with reference to the drawings. In the drawings, an arrow FR, an arrow UP, and an arrow OUT indicated as appropriate indicate the outward direction in the forward direction, the upward direction, and the width direction (lateral direction) of the vehicle seat, respectively. In the following description, when simply using the front, rear, left, right, up, and down directions, the directions with respect to the vehicle seat are indicated.

(Structure of vehicle seat)
First, the configuration of the vehicle seat 10 according to this embodiment will be described.

As shown in FIG. 1, a vehicle seat 10 according to the present embodiment includes a seat cushion (not shown) on which an occupant sits, and a lower end portion connected to a rear end portion of the seat cushion to support the occupant. and a seat back 12 for supporting the body, and a headrest 14 is attached to the upper end of the seat back 12 .

The seatback 12 includes a seatback frame 16 as a skeleton member. A lower end portion 16C of the seat back frame 16 is rotatably connected via a known reclining mechanism 17 to a rear end portion of a seat cushion frame (not shown) serving as a frame member of the seat cushion.

A seat cushion pad is attached to the seat cushion frame, and a seat back pad 18 is attached to the seat back frame 16 . is provided with an abnormal noise suppression sheet 20 shown in FIG.

As shown in FIG. 1 , the seatback frame 16 has a pair of left and right side frames 22 . These side frames 22 are formed of sheet metal and are arranged so as to face each other in the seat width direction.

Lower ends of the left and right side frames 22 are connected in the seat width direction by a sheet metal lower panel 24 . Upper ends of the left and right side frames 22 are connected in the seat width direction by an upper panel 26 made of sheet metal. Approximately cylindrical headrest holders 32 and 34 that hold leg portions 28 and 30 of the headrest 14 are fixed to the upper panel 26 by welding or the like.

A spring mat 36 is provided between the left and right side frames 22 . The spring mat 36 is also called a flat mat and has a pair of left and right side wires 38 . The left and right side wires 38 extend in the vertical direction of the seat back 12 and are arranged on both left and right sides of the seat back 12 .

A plurality of main wires 40 are bridged between the left and right side wires 38 . A plurality of main wires 40 are arranged side by side in the vertical direction of the seat back 12 with their longitudinal sides extending in the seat width direction. is fixed to the other side wire 38 .

The lower ends of the left and right side wires 38 are in a free state, and a plurality of hook members 42 provided on the left and right side frames 22 are attached to the left and right side wires 38 along the vertical direction of the seat back 12 . ing.

These hook members 42 are formed by bending wires. One end of each hook member 42 is connected to the side frame 22 , and the other end of each hook member 42 is connected to the side wire 38 . ing. That is, the spring mat 36 is supported by the left and right side frames 22 via the hook members 42 .

Here, a center wire (bar-shaped body) 44 as a locking portion is attached along the vertical direction of the seat back 12 to the central portion of the spring mat 36 in the width direction. A lower end portion (bar-shaped body) 44A of the center wire 44 is arranged so as to protrude from the main wire 40 .

By the way, in this embodiment, as described above, the noise suppressing sheet 20 shown in FIG. 2 is provided between the seat back frame 16 and the seat back pad 18 . The noise suppression sheet 20 is made of plastic such as polyethylene, non-woven fabric, or the like, and has a bag-like shape. As shown in FIG. It is possible to cover it from above.

As shown in FIG. 2, in the present embodiment, the noise suppression sheet 20 has a substantially trapezoidal shape when viewed from the front, and is formed so that the lower end is slightly larger than the upper end. A pair of semi-circular escape holes 46 and 48 are cut downward from the noise suppression sheet 20 at the center of the upper end of the noise suppression sheet 20 . Since the noise suppression sheet 20 is bag-shaped, when the noise suppression sheet 20 is unfolded, the relief holes 46 and 48 become substantially circular.

The escape holes 46 and 48 are formed at positions corresponding to the headrest holders 32 and 34 provided on the seatback frame 16 when the noise suppressing sheet 20 covers the seatback frame 16 .

Further, in the present embodiment, work holes 50 that are accessible to the seat back frame 16 penetrate through the noise suppression sheet 20 below the relief holes 46 and 48 in the upper end portion 20A of the noise suppression sheet 20 . It is formed by That is, as shown in FIG. 5, the working holes 50 are formed in portions corresponding to the front side and the rear side of the seat back frame 16 in a state where the noise suppressing sheet 20 covers the seat back frame 16. ing.

Further, in the present embodiment, as shown in FIG. 2 , the noise suppression sheet 20 is provided at both side ends of the noise suppression sheet 20 from the center portion 20B in the vertical direction of the noise suppression sheet 20 to the lower side. Through holes 52 are cut out toward the inner side in the width direction. A side airbag (not shown) may be provided in the seatback 12 (see FIG. 1). The through hole 52 is formed in a portion of the seatback frame 16 corresponding to the side airbag provided on the side frame 22 in a state where the noise suppressing sheet 20 covers the seatback frame 16 .

Furthermore, in the present embodiment, a hole (locked portion) 54 is formed through the noise suppression sheet 20 at the central portion of the noise suppression sheet 20 on the side of the lower end 20C. As described above, the center wire 44 is provided along the vertical direction of the seat back 12 at the center portion in the width direction of the spring mat 36 shown in FIG. It is arranged so as to protrude from 40. Therefore, the hole portion 54 is formed in a portion corresponding to the lower end portion 44A side of the center wire 44 in a state where the noise suppressing sheet 20 covers the seatback frame 16 .

(Function and Effect of Vehicle Seat)
Next, the operation and effect of the vehicle seat 10 according to this embodiment will be described.

As shown in FIG. 3, in this embodiment, a seat back frame 16 serving as a skeleton member of the seat back 12 is covered with a noise suppression sheet 20. The noise suppression sheet 20 has holes. A portion 54 is formed.

The hole portion 54 is engaged with the lower end portion 44A of the center wire 44 provided on the seatback frame 16. As shown in FIG. By inserting the lower end portion 44A of the center wire 44 provided on the seat back frame 16 through the hole portion 54 formed in the noise suppressing sheet 20 while covering the center wire 44, as shown in FIG. A hole portion 54 is engaged with the lower end portion 44A of the wire 44 .

As shown in FIG. 1, a seat back pad 18 is attached to the outside of the seat back frame 16, and the noise suppression sheet 20 shown in FIG. will be set in

By providing the noise suppressing sheet 20 between the seat back frame 16 and the seat back pad 18 in this manner, the seat back frame 16 and the seat back pad 18 can be prevented from coming into direct contact with each other. As a result, in the present embodiment, the seat back frame 16 and the mechanical parts (not shown) disposed in the seat back frame 16 are in direct contact with the seat back pad 18, thereby suppressing the generation of abnormal noise. be.

In the present embodiment, the hole formed in the noise suppression sheet 20 is formed in the lower end portion 44A of the center wire 44 provided on the seatback frame 16 in a state where the noise suppression sheet 20 is placed over the seatback frame 16. By locking the seat 54, it is possible to suppress the displacement of the noise suppression sheet 20 with respect to the seatback frame 16. As shown in FIG.

As a result, noise generated between the seat back frame 16 and the seat back pad 18 due to the positional displacement of the noise suppression sheet 20 with respect to the seat back frame 16 can be suppressed.

Further, in the present embodiment, as shown in FIGS. 2 and 3, the hole portion 54 is provided at the lower end portion 20C of the noise suppressing sheet 20 and at the central portion in the width direction. A center wire 44 as a locking portion is provided at the center portion of the seat back frame 16 in the seat width direction, and the hole portion 54 is formed in a portion corresponding to the lower end portion 44A of the center wire 44 . .

Since the lower end portion 44A of the center wire 44 is arranged to protrude from the main wire 40, when the noise suppressing sheet 20 is put on the seat back frame 16, the hole 54 formed in the noise suppressing sheet 20 does not move. A lower end portion 44A of a center wire 44 provided on the seatback frame 16 can be inserted through. As a result, in the present embodiment, it is possible to suppress displacement of the noise suppressing sheet 20 with respect to the seatback frame 16 via the lower end portion 44A of the center wire 44 and the hole portion 54 .

Further, in the present embodiment, as shown in FIGS. 3 and 4, the noise suppressing sheet 20 covers the seatback frame 16 from above. For this reason, in the present embodiment, as shown in FIG. 6, the noise suppression sheet 20 is held by the lower end 16C of the seat back frame 16 so that the noise suppression sheet 20 is held by the lower end 16C of the seat back frame 16. It is possible to suppress the positional deviation of the noise suppression sheet 20 from the upper end portion 20A to the lower end portion 20C of the noise suppression sheet 20 while covering the entire back frame 16 .

In addition, in the present embodiment, since the positional deviation of the noise suppression sheet 20 is suppressed at one point of the lower end portion 20C of the noise suppression sheet 20 and the central portion in the width direction, the positional deviation of the noise suppression sheet 20 can be suppressed. An accompanying increase in man-hours can be minimized.

Further, in this embodiment, as shown in FIG. 5, headrest holders 32 and 34 are attached to portions corresponding to the upper end portion 16A of the seatback frame 16 in a state where the noise suppressing sheet 20 covers the seatback frame 16. Exposing escape holes 46, 48 are formed. As a result, in this embodiment, in a state in which the noise suppressing sheet 20 covers the seat back frame 16, the leg portions 28 and 30 of the headrest 14 shown in FIG. It can be inserted into 34 .

As a comparative example, although not shown, it is conceivable that a notch or the like is formed in advance at a position where the leg of the headrest is inserted. In this case, the amount of cut may increase when inserting the leg of the headrest. There is In contrast, in the present embodiment, the headrest holders 32, 34 are exposed through the escape holes 46, 48, so such a problem does not occur.

Further, in the present embodiment, in a state in which the noise suppressing sheet 20 covers the seat back frame 16, portions corresponding to the front side and the back side of the seat back frame 16 are accessible to the seat back frame 16. A working hole 50 is formed. As a result, in the present embodiment, wiring of harnesses can be performed through the work hole 50 while the noise suppressing sheet 20 is placed over the seatback frame 16 .

Here, in this embodiment, as shown in FIGS. 2 and 3, the work hole 50 and the hole portion 54 are formed through the front side and the rear side. As a result, in the present embodiment, it is not necessary to divide the formation of the working holes 50 and the holes 54 between the front side and the back side in forming the noise suppressing sheet 20, so that the number of man-hours can be reduced.

Further, in the present embodiment, since the distinction between the front surface and the rear surface of the noise suppression sheet 20 can be eliminated, the front and rear of the noise suppression sheet 20 can be checked when the noise suppression sheet 20 is put on the seat back frame 16. It is no longer necessary to do this, and the number of man-hours required for the work can be reduced accordingly.

Furthermore, in the present embodiment, a through hole is formed in a portion corresponding to a side airbag (not shown) provided on the side of the seatback frame 16 in a state where the noise suppressing sheet 20 covers the seatback frame 16. 52 are formed. As a result, in this embodiment, when the side airbag is inflated and deployed at the time of a vehicle collision, the inflation and deployment of the side airbag are not hindered.

Here, since the side airbag is provided on the outside of the vehicle seat in the vehicle width direction, it is sufficient for the noise suppressing sheet 20 to have the through hole 52 formed on one side in the width direction. It is no longer necessary to check the front and rear of the noise suppression sheet 20 when the noise suppression sheet 20 is put on the seatback frame 16, and the number of man-hours required can be reduced accordingly.

In this embodiment, as shown in FIG. 6, a hole portion 54 is formed in the lower end portion 20C of the noise suppressing sheet 20, and the lower end portion 44A of the center wire 44 provided on the seat back frame 16 extends through the hole. The lower end portion 20C of the noise suppressing sheet 20 is engaged with the lower end portion 16C of the seat back frame 16 by inserting it through the portion 54 . However, it is not limited to this as long as the noise suppressing sheet 20 can be engaged with the seatback frame 16 .

For example, although not shown, the noise suppression sheet 20 may be engaged with the hook member 42 shown in FIG. may

Further, in the present embodiment, the lower end portion 20C of the noise suppression sheet 20 is engaged with the lower end portion 16C of the seat back frame 16, thereby suppressing the displacement of the noise suppression sheet 20. As long as the positional deviation of the noise suppression sheet 20 can be suppressed, the location where the noise suppression sheet 20 is locked to the seatback frame 16 is not limited to this.

Further, in the present embodiment, the position of the noise suppression sheet 20 is changed by locking the seatback frame 16 at one point of the lower end 20C and the central portion in the width direction of the noise suppression sheet 20 . Although the increase in the number of man-hours involved in suppressing the displacement is minimized, it is of course possible to have a plurality of locking points.

In addition, the present invention can be implemented with various modifications without departing from the scope of the invention. In addition, it goes without saying that the scope of rights of the present invention is not limited to the above embodiments.

REFERENCE SIGNS LIST 10 vehicle seat 12 seat back 14 headrest 16 seat back frame 16A upper end (upper end of seat back frame)
16C lower end (lower end of seat back frame)
18 seat back pad 20 noise suppression sheet (noise suppression sheet main body)
20C lower end (lower end of noise suppression sheet main body)
28 leg portion 30 leg portion 32 headrest holder 34 headrest holder 44 center wire (rod-shaped body, locking portion)
44A lower end (rod-shaped body, locking portion)
46 Relief hole 48 Relief hole 50 Work hole 52 Through hole 54 Hole portion (locked portion)

Claims (9)

A noise suppressing seat that covers a seat back frame serving as a seat back skeleton member that supports the upper body of an occupant seated on the seat cushion,
A locked portion is formed to be locked by a locking portion provided on the seat back frame, and the locked portion is engaged with the locked portion in a state in which the noise suppressing seat main body covers the seat back frame. A noise suppressing sheet that is engaged and provided between the seat back frame and a seat back pad attached to the outside of the seat back frame. 2. The noise suppressing seat according to claim 1, wherein the locked portion is a hole through which a rod-shaped body as the locking portion provided on the seat back frame can be inserted. The hole is provided at the lower end of the noise suppression sheet body and at the center in the width direction, and in a state where the noise suppression sheet body covers the seat back frame, the hole is provided at the lower end of the seat back frame and the width of the seat. 3. The noise suppressing sheet according to claim 2, which is formed in a portion corresponding to the rod-shaped body provided in the central portion of the direction. The upper body of an occupant seated on the seat cushion provided on the upper end of the seat back frame is placed in a portion corresponding to the upper end of the seat back frame when the noise suppressing seat body covers the seat back frame. 4. The noise suppressing sheet according to any one of claims 1 to 3, wherein relief holes are formed to expose the headrest holders that hold the legs of the supporting headrest. Working holes that are accessible to the seat back frame are formed in portions corresponding to the front side and the back side of the seat back frame in a state where the noise suppressing seat body covers the seat back frame. The noise suppression sheet according to any one of claims 1 to 4. 6. The noise suppressing sheet according to claim 5, wherein the work hole on the front side and the work hole on the back side are formed to penetrate. A through hole is formed in a portion corresponding to a side airbag that is provided on the side of the seat back frame and that can be inflated and deployed in the event of a vehicle collision in a state where the noise suppressing seat body covers the seat back frame. The abnormal noise suppression sheet according to any one of claims 1 to 6. a seat back frame according to any one of claims 1 to 7;
a seat back pad attached to the outside of the seat back frame;
a noise suppressing sheet according to any one of claims 1 to 7, which covers the seat back frame and is provided between the seat back frame and the seat back pad;
seat back with A seat cushion on which the passenger sits,
a seat back according to claim 8, which supports the upper body of an occupant seated on the seat cushion;
a headrest disposed above the seat back and supporting the upper body of an occupant seated on the seat cushion;
A vehicle seat with